package org.apache.maven.execution;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import org.apache.maven.artifact.ArtifactUtils;
import org.apache.maven.plugin.descriptor.PluginDescriptor;
import org.apache.maven.project.DuplicateProjectException;
import org.apache.maven.project.MavenProject;
import org.apache.maven.project.ProjectSorter;
import org.codehaus.plexus.util.dag.CycleDetectedException;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

@Deprecated
public class ReactorManager {
  public static final String FAIL_FAST = "fail-fast";

  public static final String FAIL_AT_END = "fail-at-end";

  public static final String FAIL_NEVER = "fail-never";

  public static final String MAKE_MODE = "make";

  public static final String MAKE_DEPENDENTS_MODE = "make-dependents";

  // make projects that depend on me, and projects that I depend on
  public static final String MAKE_BOTH_MODE = "make-both";

  private List blackList = new ArrayList();

  private Map buildFailuresByProject = new HashMap();

  private Map pluginContextsByProjectAndPluginKey = new HashMap();

  private String failureBehavior = FAIL_FAST;

  private final ProjectSorter sorter;

  private Map buildSuccessesByProject = new HashMap();

  public ReactorManager(List projects) throws CycleDetectedException, DuplicateProjectException {
    this.sorter = new ProjectSorter(projects);
  }

  public Map getPluginContext(PluginDescriptor plugin, MavenProject project) {
    Map pluginContextsByKey = (Map) pluginContextsByProjectAndPluginKey.get(project.getId());

    if (pluginContextsByKey == null) {
      pluginContextsByKey = new HashMap();
      pluginContextsByProjectAndPluginKey.put(project.getId(), pluginContextsByKey);
    }

    Map pluginContext = (Map) pluginContextsByKey.get(plugin.getPluginLookupKey());

    if (pluginContext == null) {
      pluginContext = new HashMap();
      pluginContextsByKey.put(plugin.getPluginLookupKey(), pluginContext);
    }

    return pluginContext;
  }

  public void setFailureBehavior(String failureBehavior) {
    if (failureBehavior == null) {
      this.failureBehavior = FAIL_FAST; // default
      return;
    }
    if (FAIL_FAST.equals(failureBehavior) || FAIL_AT_END.equals(failureBehavior)
        || FAIL_NEVER.equals(failureBehavior)) {
      this.failureBehavior = failureBehavior;
    } else {
      throw new IllegalArgumentException("Invalid failure behavior (must be one of: \'" + FAIL_FAST + "\', \'"
          + FAIL_AT_END + "\', \'" + FAIL_NEVER + "\').");
    }
  }

  public String getFailureBehavior() {
    return failureBehavior;
  }

  public void blackList(MavenProject project) {
    blackList(getProjectKey(project));
  }

  private void blackList(String id) {
    if (!blackList.contains(id)) {
      blackList.add(id);

      List dependents = sorter.getDependents(id);

      if (dependents != null && !dependents.isEmpty()) {
        for (Object dependent : dependents) {
          String dependentId = (String) dependent;

          if (!buildSuccessesByProject.containsKey(dependentId) && !buildFailuresByProject.containsKey(dependentId)) {
            blackList(dependentId);
          }
        }
      }
    }
  }

  public boolean isBlackListed(MavenProject project) {
    return blackList.contains(getProjectKey(project));
  }

  private static String getProjectKey(MavenProject project) {
    return ArtifactUtils.versionlessKey(project.getGroupId(), project.getArtifactId());
  }

  public void registerBuildFailure(MavenProject project, Exception error, String task, long time) {
    buildFailuresByProject.put(getProjectKey(project), new BuildFailure(project, time, error));
  }

  public boolean hasBuildFailures() {
    return !buildFailuresByProject.isEmpty();
  }

  public boolean hasBuildFailure(MavenProject project) {
    return buildFailuresByProject.containsKey(getProjectKey(project));
  }

  public boolean hasMultipleProjects() {
    return sorter.hasMultipleProjects();
  }

  public List<MavenProject> getSortedProjects() {
    return sorter.getSortedProjects();
  }

  public MavenProject getTopLevelProject() {
    return sorter.getTopLevelProject();
  }

  public boolean hasBuildSuccess(MavenProject project) {
    return buildSuccessesByProject.containsKey(getProjectKey(project));
  }

  public void registerBuildSuccess(MavenProject project, long time) {
    buildSuccessesByProject.put(getProjectKey(project), new BuildSuccess(project, time));
  }

  public BuildFailure getBuildFailure(MavenProject project) {
    return (BuildFailure) buildFailuresByProject.get(getProjectKey(project));
  }

  public BuildSuccess getBuildSuccess(MavenProject project) {
    return (BuildSuccess) buildSuccessesByProject.get(getProjectKey(project));
  }

  public boolean executedMultipleProjects() {
    return buildFailuresByProject.size() + buildSuccessesByProject.size() > 1;
  }
}
